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Voting link?

I found it on the LD site, but others might not.

Lovely Perlin? How how do you do the collisions exactly?

Thanks! Collisions/physics are handled by box2dweb, using a 2D greedy mesher to simplify the grid into quads: https://github.com/hughsk/continuous-box2d

The terrain is a mix of a cellular automaton (https://github.com/hughsk/cave-automata-2d) with a bit of perlin noise to fill in the gaps :)